Xeon Gold 6126 vs Xeon E5-2687W v4
Xeon Gold 6126
Xeon E5-2687W v4
Performance Spectrum - CPU
About PassMark
PassMark CPU Mark evaluates processor speed through complex mathematical computations. It provides a reliable metric to compare multi-core performance, where higher scores indicate faster processing for multitasking, gaming, and heavy workloads.
Value Upgrade Path
This is the official ChipVERSUS Value Rating, comparing raw performance (PassMark) per dollar. Components placed above yours deliver better value for money.
Avg price is the current average price collected from markets across the web.
Performance Per Dollar Xeon Gold 6126
Performance Per Dollar Xeon E5-2687W v4
Performance Comparison
About PassMark🏆 Chipversus Verdict
🚀 Performance Leadership
| Insight | Xeon Gold 6126 | Xeon E5-2687W v4 |
|---|---|---|
| Gaming | ✅ Superior gaming performance | ❌ Lower gaming performance |
| Workstation | ❌ Weaker in multi-core tasks | ✅ Better multi-core power |
| Price | ✅ More affordable ($0) | ⚠️ Higher cost ($1,138) |
| Longevity | ✨ Modern (Skylake (server) (2017−2018) / 14 nm) | 🛑 Legacy (Broadwell (2015−2019) / 14 nm) |
💎 Value Proposition
| Insight | Xeon Gold 6126 | Xeon E5-2687W v4 |
|---|---|---|
| Cost Efficiency | ❌ Lower cost efficiency | ❌ Lower cost efficiency |
| Upfront Cost | ✅ More affordable ($0) | ⚠️ Higher cost ($1,138) |
Performance Check
To accurately isolate CPU performance, all benchmarks below use an NVIDIA RTX 4090 as the reference GPU. This eliminates GPU-side bottlenecks and highlights pure processing throughput differences between the CPUs.
Note: Real-world results may vary based on your actual GPU. CPU performance impact is more visible in processing-intensive titles and high-refresh-rate gaming scenarios.
Technical Specifications
Side-by-side comparison of Xeon Gold 6126 and Xeon E5-2687W v4
Xeon Gold 6126
The Xeon Gold 6126 is manufactured by Intel. It was released in 25 April 2017 (8 years ago). It is based on the Skylake (server) (2017−2018) architecture. It features 12 cores and 24 threads. Base frequency is 2.6 GHz, with boost up to 3.7 GHz. L3 cache: 19.25 MB. L2 cache: 12 MB. Built on 14 nm process technology. Socket: LGA3647. Thermal design power (TDP): 125 Watt. Memory support: DDR4-2666. Passmark benchmark score: 17,492 points. Launch price was $1,776.
Xeon E5-2687W v4
The Xeon E5-2687W v4 is manufactured by Intel. It was released in 20 June 2016 (9 years ago). It is based on the Broadwell (2015−2019) architecture. It features 12 cores and 24 threads. Base frequency is 3 GHz, with boost up to 3.5 GHz. L3 cache: 30 MB. L2 cache: 3 MB. Built on 14 nm process technology. Socket: LGA2011. Thermal design power (TDP): 160 Watt. Memory support: DDR4-1600, DDR4-1866, DDR4-2133, DDR4-2400. Passmark benchmark score: 17,640 points. Launch price was $2,141.
Processing Power
Both the Xeon Gold 6126 and Xeon E5-2687W v4 share an identical 12-core/24-thread configuration. Boost clocks reach 3.7 GHz on the Xeon Gold 6126 versus 3.5 GHz on the Xeon E5-2687W v4 — a 5.6% clock advantage for the Xeon Gold 6126 (base: 2.6 GHz vs 3 GHz). The Xeon Gold 6126 uses the Skylake (server) (2017−2018) architecture (14 nm), while the Xeon E5-2687W v4 uses Broadwell (2015−2019) (14 nm). In PassMark, the Xeon Gold 6126 scores 17,492 against the Xeon E5-2687W v4's 17,640 — a 0.8% lead for the Xeon E5-2687W v4. L3 cache: 19.25 MB on the Xeon Gold 6126 vs 30 MB on the Xeon E5-2687W v4.
| Feature | Xeon Gold 6126 | Xeon E5-2687W v4 |
|---|---|---|
| Cores / Threads | 12 / 24 | 12 / 24 |
| Boost Clock | 3.7 GHz+6% | 3.5 GHz |
| Base Clock | 2.6 GHz | 3 GHz+15% |
| L3 Cache | 19.25 MB | 30 MB+56% |
| L2 Cache | 12 MB+300% | 3 MB |
| Process | 14 nm | 14 nm |
| Architecture | Skylake (server) (2017−2018) | Broadwell (2015−2019) |
| PassMark | 17,492 | 17,640 |
| Geekbench 6 Single | — | 1,063 |
| Geekbench 6 Multi | — | 8,255 |
Memory & Platform
The Xeon Gold 6126 uses the LGA3647 socket (PCIe 3.0), while the Xeon E5-2687W v4 uses LGA2011 (PCIe 3.0) — making them incompatible on the same motherboard. Maximum memory speed reaches 2666 on the Xeon Gold 6126 versus DDR4-2400 on the Xeon E5-2687W v4 — the Xeon Gold 6126 supports 199.4% faster memory, which can translate to measurable gains in memory-sensitive workloads. The Xeon E5-2687W v4 supports up to 1536 GB of RAM compared to 768 — 66.7% more capacity for professional workloads. Memory channels: 6 (Xeon Gold 6126) vs 4 (Xeon E5-2687W v4). PCIe lanes: 48 (Xeon Gold 6126) vs 40 (Xeon E5-2687W v4) — the Xeon Gold 6126 offers 8 more lanes for additional GPUs or NVMe drives. Chipset compatibility: C621 (Xeon Gold 6126) and C610,X99 (Xeon E5-2687W v4).
| Feature | Xeon Gold 6126 | Xeon E5-2687W v4 |
|---|---|---|
| Socket | LGA3647 | LGA2011 |
| PCIe Generation | PCIe 3.0 | PCIe 3.0 |
| Max RAM Speed | 2666+66550% | DDR4-2400 |
| Max RAM Capacity | 768 | 1536 GB+209715100% |
| RAM Channels | 6+50% | 4 |
| ECC Support | ✅ | ✅ |
| PCIe Lanes | 48+20% | 40 |
Advanced Features
Only the Xeon Gold 6126 supports AVX-512 instructions — important for machine learning and scientific applications. Virtualization support: VT-x, VT-d (Xeon Gold 6126) vs Yes (Xeon E5-2687W v4). Direct competitor: Xeon Gold 6126 rivals EPYC 7301.
| Feature | Xeon Gold 6126 | Xeon E5-2687W v4 |
|---|---|---|
| Integrated GPU | No | No |
| IGPU Model | None | — |
| Unlocked | No | — |
| AVX-512 | Yes | No |
| Virtualization | VT-x, VT-d | Yes |
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